CVE-2026-72745

✕ Withdrawn — historical dataHIGHPre-NVD 7.5
7.5CVSS
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

FreeRDP before 3.30.0 contains an out-of-bounds vulnerability in kerberos_DecryptMessage() (winpr/libwinpr/sspi/Kerberos/kerberos.c). The 16-bit EC (extra count) field of a peer-supplied GSS Wrap token (RFC 4121) is used directly in pointer arithmetic to locate the encrypted regions without being bounds-checked, while only RRC and the total buffer length are validated. A malicious peer (server or client) can supply a large EC value (up to 0xFFFF) during CredSSP/NLA authentication, moving the decrypt operation's base pointers past the end of the ~60-byte token buffer. Because the AES-CTS-HMAC enctypes decrypt in place before the HMAC integrity check, this results in an out-of-bounds read and in-place out-of-bounds write, potentially leading to information disclosure, memory corruption, or denial of service.

CVSS v3
7.5
EchelonGraph score
Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
EG Score
—
EG Risk
—
EPSS PROB
0.4%
EPSS %ILE
28th
KEV
Not listed

Published

August 11, 2026

Last Modified

August 11, 2026

Advisory Details (2)

Auto-updated Aug 11, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

FreeRDP before 3.30.0 Out-of-Bounds Read via Kerberos GSS Wrap-token EC | Advisories | VulnCheck

https://www.vulncheck.com/advisories/freerdp-before-out-of-bounds-read-via-kerberos-gss-wrap-token-ec
github Patch Available🟡 PoC Available

Kerberos GSS Wrap-token `EC` field is unbounded, causing an out-of-bounds decrypt in `kerberos_DecryptMessage` · Advisory · FreeRDP/FreeRDP · GitHub

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vv64-95pc-vj9v

Vendor Advisories for CVE-2026-72745(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 3× in last 7d / 11× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-03 21:38 UTCGHSA enrichment
  2. 2026-09-30 22:19 UTCEG score recompute
  3. 2026-09-30 22:19 UTCGHSA enrichment
  4. 2026-09-27 11:02 UTCGHSA enrichment
  5. 2026-09-24 02:53 UTCGHSA enrichment
  6. 2026-09-21 03:35 UTCGHSA enrichment
  7. 2026-09-18 03:45 UTCGHSA enrichment
  8. 2026-09-15 04:27 UTCGHSA enrichment
  9. 2026-09-12 05:03 UTCGHSA enrichment
  10. 2026-09-09 05:44 UTCGHSA enrichment
  11. 2026-09-06 01:26 UTCGHSA enrichment
  12. 2026-09-03 01:29 UTCGHSA enrichment
  13. 2026-08-30 23:01 UTCGHSA enrichment
  14. 2026-08-27 23:42 UTCGHSA enrichment
  15. 2026-08-25 00:11 UTCGHSA enrichment
  16. 2026-08-22 00:53 UTCGHSA enrichment
  17. 2026-08-19 01:34 UTCGHSA enrichment
  18. 2026-08-16 02:16 UTCGHSA enrichment
  19. 2026-08-13 02:58 UTCEG score recompute▼ 7.50
  20. 2026-08-13 02:58 UTCGHSA enrichment
  21. 2026-08-12 14:27 UTCEG score recompute
  22. 2026-08-12 14:27 UTCGHSA enrichment
  23. 2026-08-12 13:51 UTCEPSS rescore
  24. 2026-08-12 01:56 UTCEG score recompute
  25. 2026-08-12 01:56 UTCGHSA enrichment
Show 3 more
  1. 2026-08-11 13:25 UTCEG score recompute
  2. 2026-08-11 12:22 UTCEG score recompute
  3. 2026-08-11 12:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72745?
CVE-2026-72745 is a high vulnerability published on August 11, 2026. FreeRDP before 3.30.0 contains an out-of-bounds vulnerability in kerberos_DecryptMessage() (winpr/libwinpr/sspi/Kerberos/kerberos.c). The 16-bit EC (extra count) field of a peer-supplied GSS Wrap token (RFC 4121) is used directly in pointer arithmetic to locate the encrypted regions without being…
When was CVE-2026-72745 disclosed?
CVE-2026-72745 was first published on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72745 actively exploited?
CVE-2026-72745 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (28th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72745?
CVE-2026-72745 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72745?
A fix for CVE-2026-72745 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72745 are linked in the Vendor Advisories panel on this page.

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